Tenneco to exhibit new modular electronic exhaust valve

Tenneco, a global supplier of ride performance and air purification products and systems, announced at the Frankfurt Motor Show 2017 (Hall 5.1 stand A20) the introduction of low-pressure exhaust gas recirculation (EGR), engine deactivation technology and acoustic tuning applications. The next generation of electronic valves. The product is equipped with a dynamic valve controller, which can adjust the pressure to achieve the best conditions and achieve efficient EGR. At the same time, it is designed to achieve fail-safe protection. When a fault occurs, for example, the signal is interrupted, the valve is automatically returned.
Tenneco to exhibit new modular electronic exhaust valve Tenneco to exhibit new modular electronic exhaust valve

This electronic exhaust valve is modularly designed to provide vehicle manufacturers with a flexible and applicable engine architecture. Tenneco's first-generation electronic exhaust valve technology is currently being produced on several vehicle platforms around the world, and next-generation valves will be introduced later this year.

The new electronic valve will be used in the following areas: engine exhaust noise management and control; by controlling the opening and closing of the valve, a part of the exhaust gas will be recirculated and returned to the cylinder to reduce NOx emissions; used as an energy recovery system Pass through the valve and adjust the acoustic performance of the exhaust system to help the vehicle achieve greater fuel efficiency in a cylinder deactivation mode with low load driving. The electronic exhaust valve can help reduce the weight and volume of the muffler while maintaining precise control of the sound characteristics of the engine, helping the engine to effectively control CO2 emissions.

"In today's and future vehicle designs, whether it is used to solve vehicle emissions and noise problems, improve engine exhaust noise characteristics, or to reduce the size of the muffler to achieve lightweight, electronic exhaust valve becomes more and more important. "Tenaco vice president and chief technology officer Ben Patel said, "Our unique modular products will enable automakers to meet regulatory requirements and meet their diverse needs in an effective, cost-competitive manner. ”

Tenneco's new modular electronic exhaust valve has a more flexible layout to meet application needs. It supports a variety of signal communication methods as well as different levels of integrated electronics to provide greater flexibility. In addition, there is a unique valve body and a variety of size designs that allow the actuator to be assembled at different angles to meet customer's different assembly space applications.

The simple, tight assembly design concept makes the electronic exhaust valve actuators interchangeable. The outstanding feature of this valve is the use of a special dual-bearing design that maximizes airtightness and prevents external water or salt from corroding the interior. The valve maintains good performance at ambient temperatures up to 140°C and exhaust temperatures up to 750°C.

Electronic exhaust valves have very good acoustic properties. For example, the electronically controlled valve plate remains closed under normal driving conditions, enabling a quiet driving environment; when the vehicle accelerates rapidly, the valve plate opens to generate a lower back pressure, higher power is obtained, and engine fuel is achieved. Maximum efficiency. For these applications, we provide products with fail-safe and no-failure safety functions to meet different application needs.

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